Variability in Distal Femoral Anatomy in Patients Undergoing Total Knee Arthroplasty: Measurements on 13,546 Computed Tomography Scans

2015 ◽  
Vol 30 (10) ◽  
pp. 1835-1838 ◽  
Author(s):  
Gokhan Meric ◽  
Guilherme C. Gracitelli ◽  
Luke J. Aram ◽  
Michael L. Swank ◽  
William D. Bugbee
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Computed Tomography Scans ◽  
Total Knee

scholarly journals Hyperphosphatemic Tumoral Calcinosis after Total Knee Arthroplasty

2017 ◽  
Vol 2017 ◽  
pp. 1-3
Author(s):  
Takeshi Mochizuki ◽  
Katsunori Ikari
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Tumoral Calcinosis ◽  
Left Elbow ◽  
Computed Tomography Scans ◽  
Old Japanese ◽  
Total Knee ◽  
The Right ◽  
Osteoid Seam

We report a case of hyperphosphatemic tumoral calcinosis (TC) that occurred after total knee arthroplasty. A 64-year-old Japanese man presented with painful swellings in both shoulders, the left elbow, and the right hip that developed after he underwent total knee arthroplasty (TKA). The pathology of the patient’s bone at the time of TKA included a thick osteoid seam with calcareous deposition at the margin of the trabecular bone, which is not generally seen in osteoarthritis. Computed tomography scans of the swollen joints demonstrated leaflet and amorphous calcification masses around the joints. We diagnosed the patient with TC. The present case highlights that TC lesions are rare but should be considered in the differential diagnosis of subcutaneous soft and hard masses around the joint.

Computed navigated total knee arthroplasty compared to computed tomography scans

The Knee ◽  
2017 ◽  
Vol 24 (3) ◽  
pp. 622-626 ◽  
Author(s):  
Ron Batash ◽  
Guy Rubin ◽  
Alexander Lerner ◽  
Hussein Shehade ◽  
Nimrod Rozen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Computed Tomography Scans ◽  
Total Knee

Computed tomography analysis of knee pose and geometry before and after total knee arthroplasty

2012 ◽  
Vol 45 (13) ◽  
pp. 2215-2221 ◽  
Author(s):  
K.C.T. Ho ◽  
S.K. Saevarsson ◽  
H. Ramm ◽  
R. Lieck ◽  
S. Zachow ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Before And After ◽  
Total Knee ◽  
Tomography Analysis

Imaging of symptomatic total knee arthroplasty with cone beam computed tomography

2018 ◽  
Vol 59 (12) ◽  
pp. 1500-1507 ◽  
Author(s):  
Antti Jaroma ◽  
Juha-Sampo Suomalainen ◽  
Lea Niemitukia ◽  
Tarja Soininvaara ◽  
Jari Salo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Cone Beam Computed Tomography ◽  
Tibial Component ◽  
Cone Beam ◽  
Component Rotation ◽  
Symptomatic Knee ◽  
Total Knee ◽  
Component Loosening

Background Computed tomography (CT) can be used to assess the rotational alignment of prosthesis components to identify possible underlying causes of symptomatic total knee arthroplasty (TKA). The use of cone beam computed tomography (CBCT) for the imaging of extremities is relatively new, although it has been widely used in dental imaging. Purpose To assess the intra- and inter-observer reproducibility of CBCT, as well as to validate CBCT for TKA component and periprosthetic bone diagnostics. Material and Methods CBCT scans were performed on 18 patients the day before a scheduled revision TKA, from which the intra- and inter-observer reproducibility were assessed. Component rotation and loosening were evaluated. Perioperative bone defects were classified. Results The inter-observer intraclass coefficient correlation (ICC) for femoral component rotation was 0.41 (95% confidence interval [CI] = 0.12–0.69). For the tibial component, the ICC was 0.87 (95% CI = 0.74–0.94). Intra-observer reproducibilities were 0.70 (95% CI = 0.35–0.87) and 0.92 (95% CI = 0.80–0.97), respectively. The sensitivity for tibial component loosening was 97% and the specificity was 85%. The reliability of bone defect classification was only weak to moderate. Conclusion Two-dimensional (2D) CBCT scanning provides reliable and reproducible data for determining the rotation of femoral and tibial components, while showing minor overestimation of tibial component loosening. CBCT is a promising new tool for the evaluation of symptomatic knee arthroplasty patients, with a substantially lower radiation dose compared to conventional 2D multi-slice CT.

Computed tomography evaluation of total knee arthroplasty implants position after two different surgical methods of implantation

2018 ◽  
Vol 43 (1) ◽  
pp. 139-149 ◽  
Author(s):  
Francesco Benazzo ◽  
Stefano Marco Paolo Rossi ◽  
Gianmarco Danesino ◽  
Catherine Klersy ◽  
Simone Perelli ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Surgical Methods ◽  
Total Knee

scholarly journals Recurrent hemarthrosis after total knee arthroplasty in rheumatoid arthritis successfully treated with selective embolization: A case report

2020 ◽  
Vol 8 ◽  
pp. 2050313X2096411
Author(s):  
Takeo Mammoto ◽  
Toshiyuki Irie ◽  
Nobuyuki Takahashi ◽  
Shun Nakajima ◽  
Atsushi Hirano
Keyword(s):  
Rheumatoid Arthritis ◽  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Rare Complication ◽  
Selective Embolization ◽  
Acute Complications ◽  
Genicular Artery ◽  
Suprapatellar Pouch ◽  
Total Knee

Recurrent hemarthrosis after total knee arthroplasty is a rare complication. This usually occurs in osteoarthritis, but is relatively rare in rheumatoid arthritis. This is a report of recurrent hemarthrosis after total knee arthroplasty in a rheumatoid arthritis patient. An 85-year-old woman with rheumatoid arthritis had received total knee arthroplasty without acute complications. At 6 months after surgery, the first hemarthrosis occurred and an initial conservative treatment failed. Contrast computed tomography showed prominent synovial enhancement in the superior lateral suprapatellar pouch. Selective catheterization revealed an abnormal hyperemic blush supplied from the branches of the superior lateral genicular artery. After embolization with N-butyl-2-cyanoacrylate, abnormal staining of the synovium diminished and knee swelling and pain disappeared without complications. Selective embolization is favorable for successful treatment of recurrent hemarthrosis after total knee arthroplasty in patients with rheumatoid arthritis.

Assessment of implant position after total knee arthroplasty by dual-energy computed tomography

2015 ◽  
Vol 57 (5) ◽  
pp. 612-619 ◽  
Author(s):  
Ferdinando Ferrara ◽  
Antonio Cipriani ◽  
Santi Rapisarda ◽  
Marta Iacobucci ◽  
Nicola Magarelli ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Dual Energy ◽  
Implant Position ◽  
Dual Energy Computed Tomography ◽  
Total Knee
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